Rubber Layer Weapon Upgrades

Inside a safe in a room guarded by mutant cats. After dealing with them, smash the padlock to gain access. Works with the SVU-MK S-3.

Inside a backpack on top of the roof. To reach it, you’ll need to jump onto the half-wall near the entrance then climb onto the nearby overhang. Works with the M10 Gordon.

Inside a safe at the edge of the rooftop. You’ll need to climb ladders, jump between buildings, and avoid fire anomalies to reach it. Works with the AS Lavina.